wvufootball 10+ year member
Senior VIP Member
So my friend asked me to fine tune his amps and head unit for his car. He has 4 door speakers amped and a pair of rockford subs. His speakers are sounding like crap so the first thing i want to check is the phase. What is the easiest way to test it? do i just use a DMM on the speakerwire at the amp?